BLM18BB221SZ1D

Chip Ferrite Bead Overview

The Murata BLM18BB221SZ1D is a single-line chip ferrite bead in the BLM18_xN series, housed in a 0603 (1608 metric) surface-mount package measuring 1.6 mm x 0.8 mm x 0.8 mm. It provides an impedance of 220 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 450 mA and exhibits a maximum DC resistance of 450 mOhms. It operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise suppression for signal lines in compact surface-mount designs
• Engineered for stable performance across wide industrial temperature variations
• Features low DC resistance to minimize power loss in current-carrying paths

Chip Ferrite Bead Applications

• EMI suppression in portable electronic devices
• Noise filtering for high-speed digital signal lines
• Power supply line conditioning in compact circuits

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm exact electrical tolerances and packaging configurations. Ensure the selected variant matches the required impedance and current ratings for the target application circuit. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm authenticity and availability status before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for noise suppression with moderate current handling capabilities. The 220 Ohm impedance value targets specific frequency ranges around 100 MHz. Consider the 450 mA current rating to ensure the component does not saturate or overheat during normal operation. Verify that the unshielded construction meets the electromagnetic compatibility requirements of the host system.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM18 series of chip ferrite beads, designed for general-purpose EMI suppression. The BLM18BB221SZ1D specifically utilizes the BB material characteristic for its impedance profile. It is part of a broader family of passive components used to filter high-frequency noise in modern electronic assemblies without significantly affecting the desired signal integrity.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Murata cross-reference tools or authorized distributor databases for verified equivalent components.